Sound-concentrating device.



C. E. SARGENT.

SOUND CONCENTRATING DEVICE.

APPLICATION FILED mm. 19. 1911.

1,252,039. Patented Jan.'1, 1918.

CHARLES E. SABGENT, OF INDIANAPOLIS, INDIA NA.

SOUND-CONCENTRATING DEVICE.

Specification of Letters Patent.

Patented J an. 1, 1918.

Application filed March 19, 1917. Serial No. 155,708.

To all whom it may concern:

'Be it known that I, CHARLES E. SARGENT,

a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Improvement in Sound-Concentrating Devices, of which the following is a specification.

My invention relates to certain new and useful improvements in sound-concentrating devices and is fully described and explained in the specification and shown in the accompanying drawings, in which:

Figure l is a side elevation showing my device in use; Fig. 2 is a top plan, and Fig. 3 is a sectionon the line 3 of Fig. 2.

Referring to the drawings, 4 is a pair of spectacles of ordinary form having side bows 5 which encircle the ears of the user in the ordina way. 6 are my sound concentrators. T ese are made of the lightest possible construction and preferably of one of the cellulose compounds. It is desirable to employ one of the non-inflammable sorts of materials of this kind, and the devices are preferably made transparent or of a light color sorthat they will be as inconspicuous as possible. Each is of conical form and has a curved end 7 adapted to enter the ear of the user and each is held to the corresponding bow of the spectacles by clips 8.

I thus provide a very light and moonspicuous form of concentrators which may be permanently worn with no particular inconvenience and which will greatly increase the ease of hearing of the wearer.

I realize thatconsiderable variation is possible in the details of this construction without departing from the spirit of my invention; therefore I do not intend to limit myself to the specific form herein shown and described except as pointed out in the following claims, in which it is my intention to-claim all the novelty inherent in the construction as broadly as is permitted by the state of the art.

What I claim as new and desire to secure by Letters Patent is:

1. As an article of manufacture thehereindescribed sound concentrator having means whereby to attach it to the side bow of a pair of spectacles.

2. As an article of manufacture the hereindescribed conical sound concentrator of light material and of a suitable length and CHARLES E. SABGENT. 

